4 min read
By Beqa Bumbeishvili, ETF Insider


Exchange-Traded Funds (ETFs) have transformed the investment landscape, enabling investors to achieve diversified exposure across diverse sectors and asset classes. In this article, we will undertake a comprehensive comparison between two prominent ETFs: SPY (SPDR S&P 500 ETF Trust) and VOO (Vanguard S&P 500 ETF). We'll delve into various crucial aspects, including ETF tickers, full names, issuers, sectors, top holdings, capitalization, strategy, tracking, and exposure.

SPY & VOO: Overview

SPY and VOO are two ETFs that offer distinct investment strategies within the realm of the S&P 500 index. While SPY aims to mirror the performance of the S&P 500 index, VOO also seeks to replicate the same index. However, these ETFs may have subtle differences in tracking, expenses, and issuer reputation, all of which are important factors for investors to consider when making investment decisions.

SPY & VOO: Sectors and Top Holdings

The sectors and top holdings of SPY and VOO are tightly linked to the composition of the S&P 500 index itself. Both ETFs have exposure to sectors such as technology, healthcare, consumer discretionary, and financials, among others. However, the weightings of individual companies within these sectors can vary slightly between the two ETFs, potentially leading to differing returns and risk profiles. Investors should assess their risk tolerance and sector preferences when choosing between SPY and VOO.

SPY  overlap SPY VS VOOSPY overlap SPY VS VOO

SPY & VOO: Capitalization and Strategy

Both SPY and VOO boast substantial assets under management (AUM) due to their popularity among investors seeking broad exposure to the U.S. equity market. Their investment strategies are closely aligned with the S&P 500 index's methodology, aiming to replicate its performance. This similarity in strategy ensures that investors receive a comparable market return over the long term, making the decision between SPY and VOO a matter of slight differentials in fees, tracking error, and issuer reputation.

SPY & VOO: Tracking and Exposure

SPY and VOO employ different mechanisms for tracking the S&P 500 index. While both aim to replicate the index's returns, they may have nuanced differences in tracking error, which is the deviation between the ETF's performance and the index's performance. Such variations could stem from differences in expenses, sampling methods, or optimization strategies. Investors interested in closely tracking the S&P 500 index should evaluate these factors when comparing SPY and VOO.


SPY and VOO are two of the most prominent ETFs providing exposure to the S&P 500 index, a cornerstone of the U.S. equity market. Investors seeking an effortless way to invest in a broad basket of large-cap U.S. companies often gravitate towards these ETFs. To gain more comprehensive insights into their holdings, correlations, overlaps, and other intricate details, the ETF Insider app proves to be an invaluable tool. This user-friendly app equips investors with a deeper understanding of these financial instruments and helps them make informed investment decisions.

Disclaimer: This article is intended for informational purposes only and does not provide any investment advisory services. Investors should conduct their own research and consult with financial professionals before making investment decisions.

SPY - SPDR S&P 500 ETF Trust Fact Sheet. State Street Global Advisors.
VOO - Vanguard S&P 500 ETF Fact Sheet. The Vanguard Group.

SPY quote and analysis

Discover the top holdings, correlations, and overlaps of ETFs using our visualization tool.
Our app allows you to build and track your portfolio.
To learn more about the SPY SPDR S&P 500 ETF Trust, access our dedicated page now.

Get started


  • Why is SPY better than VOO?

    SPY may be considered better than VOO for some investors due to its specific focus, offering diversification.

  • Does VOO beat SPY?

    VOO's performance relative to SPY will vary over time, depending on market conditions.

  • Should I invest in SPY or VOO?

    The choice between SPY and VOO should align with your investment goals, risk tolerance, and desired exposure.

  • Are SPY and VOO good investments?

    Both SPY and VOO can be suitable investments depending on individual investment strategies, goals, and risk profiles.

  • What is the correlation between SPY and VOO?

    The correlation between SPY and VOO can vary over time, reflecting differences in performance.